Overview
The Feasa Legend is built for production environments where the LED count is high. A central Hub controls up to eight Satellite modules, enabling a full system to test 160 LEDs in a single capture cycle.
As LED counts continue to increase, manufacturers need test systems that scale without sacrificing speed. The Legend Hub communicates with up to eight Satellite modules, enabling simultaneous measurement of up to 160 LEDs while supporting stand-alone pass/fail decisions for high-throughput end-of-line production.
Its modular architecture makes expansion straightforward as products evolve, while intelligent software supports rapid pass/fail testing across multiple product variants—capturing up to 160 LEDs in as little as 0.8 seconds.
Built for large LED counts. Trusted globally.
Test up to 160 LEDs simultaneously
One Hub controls up to 8 Satellites, providing scalable, high-volume LED production testing in a streamlined configuration.
Comprehensive output parameters
Outputs include Hue, Saturation, Intensity, Dominant Wavelength, CCT, CIE xy and CIE u'v'.
Complete software package
The full Feasa Software Suite is included as standard, with DLL and programming examples for LabVIEW, C, C++, C# and Python.
Built for production integration
A single PC connection controls the Hub, with each Hub supporting up to 8 Analysers for simplified production integration.
Proven in production
- Millions of LEDs tested every day using Feasa products
- Worldwide usage on production lines by leading manufacturers
Direct engineering support
From fixture integration and setup to troubleshooting, our technical team supports you throughout deployment.
Applications
Where our Legend Analyser is commonly used.
Technical Specifications
| Parameter | Value | Notes |
|---|---|---|
| Channels | 160 / unlimited | Up to 8 Satellites × 20 LEDs each per Hub; Hubs can be combined for more |
| Wavelength range | 450–650 nm | |
| Dominant wavelength accuracy | ±2 nm @ 590 nm | |
| CCT accuracy | ±200K @ 2856K | |
| CIE xy accuracy | ±0.01 @ x=0.33, y=0.33 | After adjustment |
| Resolution (chromaticity) | 0.0001 | |
| Repeatability — wavelength | ±1 nm | |
| Repeatability — CCT | ±50K @ 2856K | |
| Repeatability — CIE xy | ±0.0015 | |
| Supply voltage | 5.0V | |
| Supply current | 200 mA per Satellite | |
| Dimensions | Hub 130×55×30 mm · Satellite 120×29×50 mm | |
| Fiber length | 0.6 m | Per channel |
| Fiber diameter | 1.0 mm | Plastic optical fiber |
| Min. bend radius | 15 mm | |
| Operating temperature | 0–50°C | |
| Interface | USB, RS232 | |
| Compliance | CE, RoHS | |
| Model / order codes | Legend 60 · Legend 80 · Legend 100 · Legend 120 · Legend 140 · Legend 160 · Legend >160 |
Feasa Legend Software Suite

Feasa Limits GUI and DLL — included with every system
- Feasa Limits GUI — Graphical interface for automatic learn and store of pass/fail criteria
- 32-board memory — Stores up to 32 different board versions — fast changeover between variants
- Real-time display — HSI, Dominant Wavelength, CCT and CIE xy per channel
- Data logging — Full data logging and export for SPC and traceability reporting
- DLL — Custom test integration — programming examples in LabVIEW and C++
- Stand-alone mode — Pass/fail at fixture via 10-pin connector — no PC required






